Hw1 - SIEO 3600 (IEOR Majors) Assignment #1 Introduction to...

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Unformatted text preview: SIEO 3600 (IEOR Majors) Assignment #1 Introduction to Probability and Statistics January 25, 2010 Assignment #1 due January 26th, 2010 1. The following is a sample of prices, rounded to the nearest cent, charged per gallon of standard unleaded gasoline in the San Francisco Bay area in June 1997. 137 , 139 , 141 , 137 , 144 , 141 , 139 , 137 , 144 , 141 , 143 , 143 , 141 Represent these data in a frequency table. 2. The following are the estimated oil reserves, in billions of barrels, for four regions in the western hemisphere. United States 38.7 South America 22.6 Canada 8.8 Mexico 60.0 Represent these data in a pie chart. 3. The following are the percentages of ash content in 12 samples of coal found in close proximity: 9 . 2 , 14 . 1 , 9 . 8 , 12 . 4 , 16 . , 12 . 6 , 22 . 7 , 18 . 9 , 21 . , 14 . 5 , 20 . 4 , 16 . 9 Find (a) sample mean (b) sample median (c) sample standard deviation (d) first and third quantiles 4. The sample mean and sample variance of five data values are, respectively, 4....
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This note was uploaded on 10/03/2011 for the course SIEO W3600 taught by Professor Yunanliu during the Spring '10 term at Columbia.

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Hw1 - SIEO 3600 (IEOR Majors) Assignment #1 Introduction to...

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